Pole.



M. LACHMAN.

POLE.

APPLICATION FILED APR. 20. 1910.

1,179,533. Patented Apr. 18, 1916.

as FL able forms of the invention,

a orr ioa.

MAURICE -'riaonman,,or new roan, N. Y.

POLE.

Specification of Letters Patent.

. Patented Apr. 18, 1916.

Application filed April '20, 191.0. SeriaTNo. 5565473 To all whom it mayconcern: Be it known that, I, MAURICE LAoHMAN, a citizen of the. UnitedStates, and a resident of the city of New York, county of New York, andState of New York, have invented certain new and useful Improvements inPoles, of which the following is a specification.

' This invention has particular reference to poles such as are employed,for example, to carry insulators and conducting wires employed inelectrical systems of lighting, telegraphy, telephony, andtransportation, and it aims to. provide for this and other usefulpurposes a pole which canbe inexpensively produced, is of maximumdurability, and light in we1ght.' This purpose is I well secured by theconstructions illustrated 1n the accompanying drawings to exemplify whatis at present regarded as very desirbut to the details of which theinvention, in its broader aspects, is not-restricted.

In said drawings: Figure 1 is a side elevation of'a pole embodying myimprovements. Fig. 2 isa similarlview of the pole, viewed from the sideat right angles to that from which Fig. 1 is seen. Fig. 3 is a crosssec- ,tion on a largerscale, embodying a form in than Fig. 3, showin aswhich the elementsare joined by -spot welding the same together, showingthe elements assembled before welding- Fig. 4 is a cross sectional view,on a smaller scale the appearance of the elements after they ave beenwelded' Fig. 5 is a view similar to Fig. 3 elements formed for ribwelding and assembled. Fig. 6 is a view of a vertical member formed witha'ridge or rib for ridge welding. Fig. 7 is a viewof a transverse-memberalso formed with a rib. Fig. 8 is a View 1 of the junction of suchmembers. Fig. 9 1s a view similar to Fig. 4 of formed of membersrib-welded together. Fig. 10 is a plan view, showing the pole providedwith lateral arms.

Similar characters of reference denote corresponding parts in theseveral views.

The pole herein illustrated contains vertical'main supporting members A,shown as flanged bars lattice members B. The lattice members areconnected and braced by flat welded to the flat faces of the verticalbars to forma substantially integral structure,

The lattice memwhich is light and strong.

diagonally and in bers B preferably extend lation as shown,

showing the apart upon all ends of the elements 15.

the pole when welded to a vertical bar in substantially'thesame'horizontal plane. These form some of the important features of theinvention, others of which will'hereinafter appear.

There are preferably four of the vertical I flanged bars A-employed,disposed at spective corners of the pole, here shown as approximatelysquare in cross section, but it will be understood that the pole may beof any other shape, as triangular,'hexagonal, octagonal, or circular,for example. Each bar is preferably of L-shape in cross section, thoughother suitable shapes of flanged bars may be employed. While the bars Aare referred to as being vertical, they are erable part of the length ofthe pole, which materially contributes to the strength of the pole.Furthermore, there is preferably employed, a series of transverse strips20, which are arranged at suitable distances or some of the sides of thewith their ends adjacent to pole, preferably 'Wliateverthe relativedisposition of the members 'referredto may be in other respects,'it isimportant that they be such that they ,may be electrically weldedtogether at the places of contact, so as to provide aneconomically-produced skeleton structure of strength adapted to thepurpose for which the pole is designed.

Two forms, adapted-for spot welding and' ridge welding respectively, areshown in the accompanying drawings. In the first of these, shown in Fig.3,.e1ther or both memthe rethroughout all or a consid-' such relation toeach other thatthey will be here at the placesof contactareformed with wan appropriate number of orotuberances, as

25, arranged therein at the place. or places where it is to intersect,or be intersected by another member. These protuberances formprojections from the bodies of thhmembers,

- the members, I In the other and through them the welding current is'hers is retained, but said elements instead. of

- venient a the welding operation,

that this side of the .t1on a is outward'and the other portion a rportion being simple protuberances are ribs extendv mg longitudinallyoftheir respective members, or-either one of the same and-preferablycontinuous throughout the length therepearance of the parts after thewelding has been eflected and the other figures showing the parts inassembled and non-assembled form, prior to the welding operation. It

- will be noted that the pro ectlons are flat-' 2O tened at the weldedplaces, whether such projections be simple protuberancgs (see Fig. 4) orribs (see Fig. 9).

The pole may be utilized to support an object which calls for one ormorelateral supports there rom.- An example of this is illustrated inthe pole shown for electrical conductors, as telegraph or telephonepoles,

' having arms projecting laterally therefrom.

In the illustrated form of these arms, and are Welded in the manneralready described, to the flat faces of the vertical me bers. Inclinedbraces 24 may be employ h the invention 'as' supports for these arms,and these braces should be welded, as described with reference toltheother members, to the flat faces of the vertical members and arms. Thearms are shown asarrangedupon opposite sides of the poles, with theirends converging and theiinsulators mayjbe disposed therein in line witheach as referred. Y Y

ttention is called to the fact that the relative disposition of themembers as shown in the drawings is such as to'permit concess to all theintersecting portions by the e ectrodes or terminals employed in pole tobe supported. by the table used in welding and to. be moved along saidtable as the welding progresses. Each longitudinal bar is arranged withits open side outward,

and in position to engagethe edge of the table upon which the welding isdone. Thus, it will be .noted upon reference to Fig. 1

pole shows the flang bars each arranged with the edge of one as a,presented outward and the face of its other portion, a, presented towardthe inside of the pole: while viewed from the side seen in Fig. 2, theface of the first porextends toward at th Figs.

the corresponding member e opposite side of the pole." (See also 3 and5.} This particular arrangethe intersecting surfaces of whereas if themembers This form is shown in Figs. 5, 6, 7, 8 and 9, the last namedfigure showing the ap designated 23, have flat faces 1 other orin-staggered relation,

and to permit the board A towers readily suggested to ment is essentialto a convenient and economical welding reason thateach bar presents asurface which may rest on the table and receive the lower terminals orelectrodes, with nothing to obstruct the welding operation and themovement of the bar longitudinally on the table step by I all of theunctions are readily accessible to the terminals of the weldingapparatus; .A' were otherwise arranged, that is,if\theywere so disposedas to present their closed sides outward at the corners of the posts,instead of their open sides as herein shown, the junctions of the partstogether, -forrthe i step as the welding progresses and would bepractically inaccessible and the weldmg operation could not be rapidlyproceeded with on the welding table operation would would besubstantially prohibitive.v

The base of the pole, i f desired, may be provided with a plate or othersuitable foundation element, as 30, and the top thereof similarly may beprovided with a'plate or other suitable cap-element 31. From theforegoing my pole will be readily seen and it will be observed thatIhave provided one which while comparatively light and may beinexpensively produced, yet has the utmost and the welding be producedat a cost which i the construction of strength and durability. Being ofskeleton structure it may be easily transported and will withstand windstresses as well as all other strains and stresses to which it may besubjected. The parts being welded together become integral, and theweakening due-to rivets is avoided, and the welding operation may beperformed at less cost than that incident to riveting. It is practical.to form the device either at the place ofuse, or at a factory, and inthe latter event it may beshipped at a comparatively normal cost.

While the invention hasbeen referred to as a pole and reference has beenmade to poles usedfor telegraph, telephone, electric lighting andtrolley wires, yet it is to be understood that the term pole"" is.usedin a generic sense'inthe present case and that it is intended to includetherein'devices more or less analogous to poles though ordinarily givenother names in view of particular uses to which they are put, amongwhich may be mentioned, masts?! and elsewhereflfor various purposes,staffs used for flags and other purposes, columns for supporting floorsor other things in building and engineering arts, used for a variety ofpurposes in Jvarious arts, and in fact, a great many other things havingspecific names which need not be referred ,to herein, but to which theapplicability of the present inventionwill be" those familiar with suchthings. Moreover, it may be'used as in pairs projecting in the sameplane inwardly and outwardly from each other, and connecting memberswelded to the outer faces of each longitudinal element, the includedangle faces thereof being left entirely unobstructed;

3. A. metal device of the character described comprising a plurality offlanged longitudinal elements, the flanges thereof being disposedsubstantially at right angles to each other, said elements beingarranged in pairs, the included angle of each longitudinal element beingoutwardly disposed and flanges of each oppositely disposed pairprojecting 1n the same plane and connecting members welded to the outerfaces of the flanges of each longitudinal element, the included anglefaces thereof being left entirely unobstructed.

In witness whereof I have hereunto set my hand at city of N. Y., countyof New York, and State of New York, this 2nd day of April 1910.

MAURICE LACHMAN. In presence of- JOSEPH A. KEHOE, LAURENCE T. LACHMAN.

a beam for supporting floors or other elements of buildings or otherstructures, or it may be used horizontally or in other position, as wellas vertically. In short, it is my purpose to apply my present inventionto various uses to which it is applicable, and these uses whether hereinexpressed or not are intended to be covered thereby.

Having now described the invention, what I believe to be new and desireto secure by Letters Patent, is:

1. A metal device of the character described comprising a plurality offlanged longitudinally arranged elements of angular cross-section, saidelements being arranged in pairs, the included angle of eachlongitudinal element being outwardly disposed, connecting members weldedto the outer faces of the longitudinal elements, the included anglefaces of the longitudinal elements being left entirely unobstructed.

2. A metal device of the character described, comprising a plurality offlanged longitudinal elements of angular cross-section, said elementsbeing arranged in pairs, the included angle of each longitudinal elementbeing outwardly disposed, the flanges

